Alarm wrist-watch



April 23, 1 63 RENE-PHILIPPE JACCARD ,0 2

ALARM WRIST-WATCH Filed Sept. 20, 1960 3 Sheets-Sheet 1 April 1963 RENE-PHILIPPE JACCARD 3,086,352

ALARM WRIST-WATCH Filed Sept. 20, 1960 3 Sheets-Sheet 2 April 23, 1963 RENE-PHILIPPE JACCARD 3, ,35

ALARM WRIST-WATCH Filed Sept. 20, 1960 3 Sheets-Sheet 3 United States Patent ()fiice 3,086,352 Patented Apr. 23, 1963 3,086,352 ALARM WRIST-WATCH Ren-Philippe Jaccard, Geneva, Switzerland, assignor to Samuel Jack Kaufman, New York, N.Y. Filed Sept. 29, 1960, Ser. No. 57,260 Qlaims priority, application Switzerland Sept. 30, 1959 1 Claim. (Cl. 5857.5)

My invention has for its object an alarm wrist Watch wherein the alarm mechanism including the alarm barrel, but exclusive of the alarm releasing means is fitted between the last bridge of the frame-work of a conventional movement and an auxiliary bridge secured to said last bridge on the outside of the movement.

I have illustrated by way of example in the accompanying drawings a preferred embodiment of my invention; in said drawings:

FIG. 1 is a plan view of my improved wrist watch;

FIG. 2 is a plan view of the movement as seen from rom the dial side;

FIG. 3 is a cross-section through line III-III of FIG. 2;

FIG. 4 is a plan view of the movement, showing the side of said movement facing the bottom;

FIG. 5 is a cross-section through line VV of FIG. 4.

The movement of the wrist watch illustrated in FIG. 5 is of a conventional type including a frame-Work constituted by a plate 19 and a three quarter bridge plate 11. For sake of clarity of the drawings, I have illustrated only a fraction of said movement, in particular the main barrel 12 (FIG. 5), the cannon pinion 13 (FIG. 3) driving the minute wheel 14 of the clock work and the hour wheel 15 rigid with a pipe 16 carrying the hour hand 17; the minute hand is illustrated at 18.

The winding and time setting of said Watch are performed in a conventional manner by means of an arrangement including a knob 19 adapted to be shifted between two axial positions, a setting lever 21), a yoke 21, a sliding member 22 and a transmission gear 23 engaging the barrel teeth. The ratchet wheel 24 on the barrel is engageable by a stop member constituted by a spring-urged click 25. The pipe 16 carries also with slight friction and through the agency of a clip ring 61, a drum 26 provided with a scale of hours 27 arranged coaxially with the annular dial 28.

The adjustment of the time of operation of the alarm is obtained through an arrangement to be described in detail hereinafter and which allows the diiferent figures of the hour scale 27 to be brought selectively into registry with a small gate 29 formed in the hour hand 17.

The movement also includes an auxiliary bridge 30 secured to the bridge 11, on the side facing the bottom 31 of the watch case. The alarm mechanism including the alarm barrel 32, the pivotally carried transmission wheel 33, the gear 34, the escape wheel 35 and the hammer 36 terminating with a tail piece 60 extending underneath the wheel 35, is fitted between said auxiliary bridge 30 and the bridge 11. The barrel 32 includes a toothed disc 37 coaxial with the arbor of the main barrel 12, said disc being pivotally carried by the bridge 39. The outer end of the spiral spring 39 in the barrel 32, the expansion of which spring is held within predetermined limits by four pins 40 is secured to one of said pins while its inner end is secured to the hub of the disc 37. The winding of the spring 39 is performed by means of a knob 42, the rod carrying which is screwed into the hub formed on the disc 37 and extends through the bottom 31 of the watch case.

When winding the alarm barrel 32, the teeth on the disc 37 disengage the transmission pinion 33 which pivots away against the action of a spring which is not illustrated. Dtu'ing the interruption of the Winding, the pinion 33 acting as a click reengages the disc 37 under the action of said spring.

The hammer 36 is normally locked by the end of a rod 43 acting on the hammer tail-piece 60; said rod 43 is rigid with a lever 44 (FIG. 2) which pivots at 45 with reference to the plate 10 and is subjected to the pressure of a spring 46.

The alarm is released by a stud 47 (FIG. 2) secured to the periphery of the drum 26 and engaging at a predetermined point of its path the nose 48 of the lever 44. The pivotal movement of said lever 44 shifts the rod 43 away from the hammer tail-piece 60, whereby the hammer is released. The adjustment of the relative position of the drum 26 and of the hour hand 17, which position defines the time of the alarm, is obtained through a knob 49 (FIG. 3) keyed, on the outside of the bottom 31 of the watch case, to the end of a spindle 50 extending through the plates 10 and 11. To the upper end of said Spindle 50 is pivotally secured a yoke 51 subjected to the action of a spring 52 urging said yoke 51 through the agency of a pin 53 against the yoke 21; said yoke 51 carries a wheel 54 meshing with a pinion 55 keyed to the upper end of the spindle 50. The wheel 54 engages or disengages the teeth on the drum 26 according as to whether the knob 19 is in its time-setting position or in its barrel-winding position.

When the knob 19 is in its time-setting position, it is possible to make the drum carrying the hour scale 27 revolve either alone under the action of the knob 49 while the hour wheel 15 is locked by the clock work or else it is possible to make the knob 19 drive simultaneously the hour scale 27 and the hands 17 and 18.

The hour scale 27 is transferred on a plate fitted on the body of the drum 26 and is angularly adjusted on the latter in a manner such that the stud 47 may release the alarm at the moment at which the figure 12 reg.- isters with the 12 figure appearing on the dial 28. This being done, the setting of the alarm-time is obtained by merely positioning in registry with the gate 29 the figure on the hour scale 27 which corresponds to the desired time at which the alarm is to ring.

In brief, when it is desired to set the watch to time, either for the Watch alone or the alarm alone or for both the Watch and the alarm, it is sufiicient to draw the knob 19 into its outermost position so as to connect said knob kinematically with the cannon pinion 13 while the knob 49 is consequently connected with the drum 26 after which either of the knobs or both are actuated according to the case. If only the alarm is to be set, only the knob 49 should be actuated.

Obviously, my invention is by no means limited to the embodiments illustrated and described. In particular the knob 42 and the knob 49 may be housed otherwise than in the bottom of the watch case. Furthermore the member controlling the means setting the time of operation of the alarm may be constituted by a push member.

What I claim is:

In an alarm watch, the combination of a plate system, a clockwork carried by the plate system and including an hour wheel and a pipe coaxially rigid with the latter, a peripherally toothed disc coaxially fitted with slight friction over said hour wheel pipe to rotate therewith, an annular hour scale carried adjacent the periphery of said disc, stud means rigid with the disc and extending along the periphery of said disc at a point thereof, an alarm system, a lever pivo-tally carried by the plate system round an axis parallel with the hour wheel, facing said disc and adapted to be shifted away from the disc by said stud means as said disk and stud means pass in front of said lever, a spring urging the lever towards the disc, means whereby said lever locks the alarm system against operation as long as the lever has not been shifted away by said stud means on the disc, a time-setting and winding mechanism including a knob shiftable between an inner Winding position and an outer time-setting position, a rocker secured to the plate system pivoted round an axis parallel with the axis of the hour Wheel and controlled by the knob to operatively connect the latter When in its outer position with the hour wheel, a further rocker pivotally secured to the plate system round an axis parallel with the axis of the hour wheel, a further spring urging said further rocker into permanent engagement With the first-mentioned rocker, a toothed Wheel revolvably carried by said further rocker, and adapted to engage the peripheral teeth on the disc under the action of a thrust exerted by the first rocker on the further rocker upon shifting of the knob into its outer position, a pinion revolvably carried by the further rocker round its pivotal axis and permanently engaging the toothed wheel on said further rocker,

4. and means controlling last-mentioned pinion to control the angular setting of the disc when the knob is in its outer position.

References Cited in the file of this patent UNITED STATES PATENTS 1,466,842 Luttrell et al. Sept. 4, 1923 1,767,183 Lux June 24, 1930 2,556,110 Sanborn June 5, 1951 2,562,546 Gray July 31, 1951 2,604,753 Doertenbach et al July 29, 1952 FOREIGN PATENTS 63,623 Switzerland Mar. 11, 1913 273,741 Switzerland May 16, 1951 

